EP2776651A2 - Lock device having a multi-part pawl - Google Patents

Lock device having a multi-part pawl

Info

Publication number
EP2776651A2
EP2776651A2 EP12837608.4A EP12837608A EP2776651A2 EP 2776651 A2 EP2776651 A2 EP 2776651A2 EP 12837608 A EP12837608 A EP 12837608A EP 2776651 A2 EP2776651 A2 EP 2776651A2
Authority
EP
European Patent Office
Prior art keywords
catch
lock unit
pawl
stop
latched position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12837608.4A
Other languages
German (de)
French (fr)
Other versions
EP2776651B1 (en
Inventor
Robert Hunt
Keith Julien
John DIEDERICH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kiekert AG
Original Assignee
Kiekert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP2776651A2 publication Critical patent/EP2776651A2/en
Application granted granted Critical
Publication of EP2776651B1 publication Critical patent/EP2776651B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/40—Lock elements covered by silencing layers, e.g. coatings

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

A lock unit for a vehicle includes a rotatable catch biased in an opening direction about a catch rotation axis toward an open position of the lock unit in which a first recess of the catch is configured to receive a striker of the vehicle. Additionally, the catch includes a second recess disposed before the first recess in the opening direction. A pawl rotatable about a fixed pawl pivot axis is biased toward the catch. The pawl includes a blocking arm which extends into the second recess of the catch when the lock unit is in a secondary latched position. A blocking lever abuts the blocking arm of the pawl against the catch in a primary latched position of the lock unit preventing rotation of the pawl away from the catch. A rocker lever intersects both the path of the catch and the blocking lever. When the lock unit is forced from the secondary latched position to the primary latched position, the rocker is displaced by the catch and shifts the blocking lever away from the pawl.

Description

LOCK DEVICE HAVING A MULTI-PART PAWL
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention relates generally to door latches, and more specifically to a lock unit for the door of a vehicle utilizing a single pawl and blocking lever to restrain the catch in multiple positions.
[0003] 2. Description of the Related Art
[0004] Lock units customarily used for side-doors of motor vehicles utilize a latching mechanism, known as a catch, which receives a catch-bolt, or striker, typically disposed on a pillar of the vehicle doorframe. The catch is biased to an open position wherein a slot of the latch housing is aligned with a recess of the catch. As the door is shut, the striker enters the recess through the slot and rotates the catch to a closed position in which the striker is retained in the recess by a pawl which prevents the catch from rotating toward the open position. Typically the pawl is heavily biased towards the catch with the interface of the two comprised of a further negative biased angle to resist high acceleration forces. The latch housing is typically made of plastic and may be closed sealingly all-around by a cover outside the region of the slot. Such lock units typically include at least one release lever (e.g., an inside or outside door handle) and a displaceable locking mechanism (e.g., a lock cylinder at or in the outside door handle or a slide button disposed inside the window pane area of the door). In such a case, with locking mechanism unlocked, the motion of the inside or outside door handle is interconnected through the mechanism and the motion separates the connection of the pawl and the catch by overcoming the pawl bias forces, thereby allowing the spring- loaded catch to move to the open position.
[0005] Typically, lock units for doors, hatches and tailgates of motor vehicles are also provided with a secondary latched position in addition to the primary latched position. This secondary latched position falls between the primary latched position and the open position such that if the catch fails to reach the primary latched position, the door will be retained shut in the secondary latched position rather than moving all the way to the open position, which would obviously be dangerous to an occupant. In addition to preventing the vehicle door from opening during travel, the secondary latched position is also perceptible when a user does not close the vehicle door with sufficient force. Usually, in the secondary latched position, the door is visibly left ajar when the vehicle door is closed with too little force to be noticed that it not securely latched. By applying additional force (e.g., leaning against the vehicle door), the latching mechanism can be forced into the primary latched position and the door completely shut.
[0006] When released from the primary latched position by actuating the release lever, the pawl abruptly breaks away from the corresponding locking surface of the catch and the spring-loaded catch moves at a high velocity to the open position. The abrupt movement of the locking surfaces against one another results in a significant opening clack followed immediately by a second significant clack caused by the catch making impact with a limit stop as it reaches the open position. Owing to the high forces biasing the locking surfaces of the pawl and catch against one another (and also biasing the catch toward the limit stop), the noises caused by opening the vehicle door are quite loud. Additionally, the high impacts on the pawl and catch can cause damage to the lock unit and severely limit its useful life, especially since most of the impact occurs along the locking surfaces.
[0007] German Pat. Appl. No. DE 10 2007 003 948 Al describes a multi-pawl latching mechanism which reduces both the latching noises during opening and the forces required to actuate the latching mechanism. The locking surfaces of the catch and a first pawl are correspondingly chamfered and canted to achieve a smooth and gradual sliding when the locking surfaces are released from one another. Because the locking surfaces were designed to reduce the resultant shear forces caused by the locking surfaces pressing against one another while the catch is released, the forces required to actuate the locking mechanism are also correspondingly reduced. Further, due to the reduction in forces acting on the latching mechanism, the noise produced during opening is significantly reduced.
[0008] However, because the locking surfaces are designed to slide relatively easily with respect to one another, the latching mechanism is not self-latching (i.e., the locking surfaces do not hold the catch in place on their own) and requires a pawl blocking lever to hold the first pawl against the catch in the primary latched position. Additionally, to achieve a secondary latched position, a second pawl is also required. To prevent the pawl blocking lever from engaging in the secondary latched position during closing, the second pawl is disposed in a separate plane from the catch, the first pawl and the blocking lever. The secondary latched position is achieved if the primary latched position fails to engage (e.g., first pawl slides off the catch) by a bolt extending from the catch to the plane of the second pawl which abuts a blocking arm of the second pawl in the opening path of the catch. Providing the second pawl on a different plane and the introduction of the bolt into the catch can be costly from a manufacturing standpoint, however. Thus, while the multi-pawl design effectively reduces opening noise and latch actuation forces, it requires multiple different components at multiple planes of the latching mechanism, thereby making the device relatively complex and expensive to manufacture.
SUMMARY OF THE INVENTION
[0009] In view of the above-described problems, the invention provides in one embodiment a lock unit having a pawl disposed intermediate a catch and a blocking lever. The catch is rotatable and biased in an opening direction about a catch rotation axis toward an open position of the lock unit in which a first recess of the catch is configured to receive a striker of the vehicle. Additionally, the catch includes a second recess disposed before the first recess in the opening direction. The pawl is rotatable and biased toward the catch. Further, the pawl includes a blocking arm which extends into the second recess of the catch when the lock unit is in a secondary latched position. The blocking lever abuts the blocking arm of the pawl against the catch in a primary latched position of the lock unit. A rocker lever is positioned to intersect with both the travel of the catch and blocking lever. When the lock unit is forced from the secondary latched position to the primary latched position, the catch displaces the rocker resulting in a reciprocal displacement of the blocking lever away from the pawl.
[0010] In a class of this embodiment, the primary and secondary latched positions reside on the same plane as the catch.
[001 1] In a class of this embodiment, the invention provides a single blocking arm of a single pawl to achieve the primary and secondary latched positions. This helps to further simplify the design and ensure consistent operation.
[0012] In a class of this embodiment, the lock unit utilizes a smooth release of locking surfaces to minimize noise and actuation forces.
[0013] In a class of this embodiment, a secondary pawl is eliminated, which permits the usage of a conventional two-dimensional catch stamping for primary and secondary loads.
[0014] In a class of this embodiment, the invention provides a cheaper, smaller and lighter lock unit, as the steel secondary pawl, spring and catch pin are eliminated.
[0015] In addition, the design takes into account manufacturing tolerances such that minor dimensional variations will not adversely affect the performance of the lock unit.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The invention is described hereinafter with reference to accompanying drawings, in which:
[0017] FIG. 1 is a front view of a lock unit in the primary latched position in accordance with a representative embodiment of this invention;
[0018] FIG. 2 is a front view of a lock unit with the catch released from the primary latched position in accordance with a representative embodiment of this invention; [0019] FIG. 3 is a front view of a lock unit in the open position (full-travel position of the blocking lever) in accordance with a representative embodiment of this invention;
[0020] FIG. 4 is a front view of a lock unit in the catch over-travel position in accordance with a representative embodiment of this invention;
[0021] FIG. 5 is a front view of a lock unit in the secondary latched position in accordance with a representative embodiment of this invention;
[0022] FIG. 6 is a front view of a lock unit after the displacement of the rocker by the catch beyond the secondary latched position in accordance with a representative embodiment of this invention;
[0023] FIG. 7 is a front view of a lock unit during the displacement of the pawl by the catch without the impedance of the blocking lever in accordance with a representative embodiment of this invention; and
[0024] FIG. 8 is a side view of a lock unit in accordance with a representative embodiment of this invention.
DETAILED DESCRIPTION OF THE INVENTION
[0025] Referring to FIGS. 1 and 3, a lock unit 10 according to an embodiment of the invention is shown in the primary latched position and the open position, respectively. The lock unit 10 includes a baseplate 12 for mounting the lock unit 10 to a door, hatch or tailgate of a vehicle with a slot 14 in the baseplate 12 facing a striker 16 mounted to the vehicle body. Typically, the striker 16 (also referred to as a catch bolt) is a pin or U- shaped bracket mounted to a partition at the rear side of the vehicle doorframe and extending into the plane of the door opening. The lock unit 10 is typically mounted opposite the vehicle door hinges with the leading edge 13 of the baseplate 12 facing the striker 16 and the components of the lock unit 10 being disposed in the vehicle door. With such a configuration, as the vehicle door is shut, the striker 16 extends into the slot 14 of the baseplate 12 and into a first recess 22 of a catch 20 to rotate the catch 20 from an open position (shown in FIG. 3) to a primary latched position (shown in FIG. 1).
[0026] It is noted that where the striker 16 is located on the vehicle door, the lock unit 10 is mounted to the vehicle body and, regardless of its placement, a housing or cover could also be provided in addition to or in lieu of the baseplate 12 to further protect the components of the lock unit 10.
[0027] In one embodiment, the catch 20, pawl 40 and blocking lever 60 can be relatively flat parts made from metal or plastic. The baseplate 12, and any housing covering the lock unit 10, can also be formed by plastic injection molding. In another embodiment, the lock unit 10 is constructed from metal or a combination of metal and plastic components.
[0028] In FIG. 1, the vehicle door is fully closed and the lock unit 10 is in the primary latched position. The catch 20, which is mounted to a catch rotation axis 24 via a catch mounting hole 26, retains the striker 16 in the first recess 22. The catch 20 is biased by a spring to rotate about the catch rotation axis 24 in the opening direction SI, but is retained in the primary latched position by a blocking arm 48 of the pawl 40 which, in turn, is held in place by a blocking arm 62 of the blocking lever 60. The blocking lever 60 is mounted adjacent the pawl 40 to a lever rotation axis 68 via a blocking lever mounting hole 69. A primary catch stop 32, which may be located at the bottom of the first recess 22 or on the periphery of the catch 20 between the first and second recesses 22, 30, contacts the blocking arm 48 of the pawl 40. Because the contact face 33 of the primary of the primary catch stop 32 and the contact face 50 of the pawl blocking arm 48 are designed so as to slide smoothly apart (e.g., by incorporating positive angled sloped surfaces of gradually-reduced incline), the blocking lever arm 62 is provided abutting a stop 54 of the pawl 40.
[0029] Regardless of the relative placement of the blocking lever arm 62 and pawl stop 54, the blocking lever 60 may be prevented from rotating by the normal force from the pawl stop 54 running through the lever rotation axis 68. However, it is preferable to bias the rotation of the blocking lever 60 about the lever rotation axis 68 in the direction of S2, which may use a torsion spring having one end connected to the baseplate 12 and the other end connected to the blocking lever 60. Thus, even if the force from the pawl stop 54 causes a moment to be applied to the blocking lever 60 (i.e., normal force does not run through the blocking lever rotation axis 68), rotation will be hindered by the bias in direction of S2 and maintain contact between the blocking lever arm 62 and the pawl stop 54 will be maintained, thereby maintaining the position of the pawl 40 and preventing the primary catch stop 32 from coming free from the pawl blocking arm 48.
[0030] Limit stops (e.g., protrusions extending from the baseplate 12) could also be used to limit the rotation of the blocking lever 60, as well as the catch 20 and the pawl 40, to a predetermined range of motion. In one embodiment of the invention, the rotation of the blocking lever 60 is at its limit in the clockwise direction when in the primary latched position and is biased to that position by the lever spring in the direction of S2.
[0031] In order to open the vehicle door, the lock unit 10 is released from the primary latched position shown in FIG. 1 by moving the blocking lever arm 62 away from the pawl stop 54 past the blocking lever release edge 64. Preferably, the blocking lever 60 is connected to an operating link pulling in the direction of S5 so as to enable a rotation of the blocking lever arm 62 counter-clockwise away from the pawl stop 54 as shown in FIG. 2. The operating link is connected outside the lock unit 10 to an inside and/or outside door handle (e.g., designed as a rod assembly or Bowden cable) which is actuated by a user opening the vehicle door. Alternatively, the rotation of the blocking lever 60 could be controlled by a servo motor and operated by a switch or sensor.
[0032] Referring to FIG. 2, the lock unit 10 is shown immediately after the release of the catch 20 from the primary latched position. It is noted that the release is rather quick since only one lever need be actuated to release the catch 20. Once the blocking lever arm 62 clears the pawl stop 54, the spring force of the catch 20 causes it to rotate and the primary catch stop 32 slides smoothly along the pawl blocking arm 48, thereby causing the pawl 40 to rotate in a clockwise direction about the pawl pivot axis 42 toward the blocking lever 60. At this point, the blocking lever arm 62 is accommodated in a recessed portion 52 of the pawl 40 adjacent the pawl stop 54. [0033] Once the primary catch stop 32 clears the pawl blocking arm 48 at the position shown in FIG. 2, the catch 20 is free to rotate in the opening direction SI. Due to the speed of rotation of the catch 20 and the transitional curved surfaces of the pawl blocking arm 48 and the secondary catch stop 34, the lock unit 10 skips over the secondary latched position shown in FIG. 5 as the second recess 30 and secondary stop 34 of the catch 20 slide past the pawl blocking arm 48. The catch 20 continues to rotate until it is stopped in the full-travel position, as shown of FIG. 3, by the baseplate 12 through the slot 14, by full extension of the spring, or by a different limit stop. While the catch 20 rotates, its spring force in the opening direction SI pushes the striker 16 through the slot 14 toward the leading edge 13 of the base plate 12, thereby separating the vehicle door from the body. In this manner, the lock unit 10 is self-opening since it does not require external actuation forces after release of the catch 20.
[0034] When a user closes the vehicle door, the striker 16 enters into the slot 14 and hits against a striking edge 38 of the first recess 22 of the catch 20. The force of the door as it closes causes the striker 16 to press against the striking edge 38 of the first recess 22, thereby rotating the catch 20 in the closing direction of S4 against the spring force opposite the opening direction SI. During initial rotation, the blocking arm 48 of the pawl 40 slides along the sliding surface 36 of the catch 20. Similar to the release of the catch 20 when opening the door, the second recess 30 and the primary stop 32 will slide past the pawl blocking arm 48 such that the secondary latched position shown in FIG. 5 is bypassed as long as the door is shut with sufficient force. In such a case, the catch 20 may reach an over-travel position shown in FIG. 4. After the primary stop 32 of the catch 20 clears the blocking arm 48 of the pawl 40, a spring in the direction of S3 rotates the pawl 40 sufficiently away from the blocking lever 60 such that the blocking lever arm 62 exits the recessed portion 52 of the pawl 40, at which point, a spring in the direction of S2 rotates the blocking lever arm 62 back to its position below the pawl stop 54.
[0035] In one embodiment, the blocking lever 60 has a rounded tip to facilitate a smooth sliding along the pawl recess wall 52, which may also be canted and, preferably, extends from pawl stop 54 towards the catch 20. [0036] However, in a case where the vehicle door is not shut with sufficient force (i.e., closed too slowly), the lock unit 10 enters into the secondary latched position shown in FIG. 5. The secondary latched position falls between the primary latched position and the open position such that if the primary latched position is not engaged, the lock unit 10 will not disengage to the open position which would release the vehicle door during travel and place the vehicle occupants at considerable risk. Latching mechanisms can release from the primary latched position due to the outward force applied by the vehicle door compression seals, vehicle vibrations and impacts to the vehicle and the like; when this occurs, the latching mechanism must have a secondary latched position to prevent the door from opening.
[0037] Referring to FIG. 5, the secondary latched position according to an embodiment of the invention is shown. When a user shuts the vehicle door too slowly, the second recess 30 of the catch 20 does not slide past the blocking arm 48 of the pawl 40; rather, after the sliding surface 36 slides past the pawl blocking arm 48, the pawl blocking arm 48 is pressed into the second recess 30 of the catch 20, thereby assuming the secondary latched position. In response to the continued closing of the vehicle door, or an additional external force which may be applied by the user or a servo motor, the catch 20 continues to rotate opposite to the opening direction SI. As the secondary catch stop 34 rotates away from the pawl blocking arm 48, a spring in the direction of S3 rotates the pawl blocking arm 48 into the second recess 30 of the catch 20. This opens a gap between the pawl stop 54 and the blocking lever arm 62. The absence of friction and negative slope angle further reduces the effort required of the rocker lever 70 to displace the blocking lever 60.
[0038] Referring to FIG. 6, the lock unit 10 is shown traveling from the secondary latched position toward the primary latched position. The catch 20 has a local rocker actuator feature 37 that displaces the rocker arm 71 of the rocker lever 70 at the contact surface of the rocker lever 74. This actuator feature 37 is preferably produced in the existing plastic overmold of catch 20. This feature could also be produced from a pin of steel, plastic, diecast or stamping deformation. The rocker lever 70, in this embodiment having a fixed pivot location 73, provides a reciprocal force at the blocking lever actuator 72 to overcome the spring force in the direction of S2. The pivot 73 of the rocker lever 70 can be a fixed point pivot or a sliding point pivot.
[0039] The rocker lever 70 may further be mounted planar with the catch 20 and the blocking lever 60 as best makes use of the available package space. The relationship of rocker pivot and actuator features are such that the blocking lever arm 62 is displaced from the path of the pawl stop 54 before the pawl blocking arm 48 contacts the catch exit edge 31. The catch exit edge 31 is gradually curved to achieve a smooth sliding against the curved edge of the pawl blocking arm 48. However, many different complementary surfaces can be used on the exit edge 31 and the pawl blocking arm 48, such as flat and rounded, chamfered and canted, etc.
[0040] As shown in FIG. 7, as the lock unit 10 continues traveling from the secondary latched position toward the primary latched position, the catch 20 operates the rocker lever 70 with the actuator 37 and, simultaneously, the exit edge 31 displaces the pawl blocking arm 48 opposite the direction of S3.
[0041] As the pawl blocking arm 48 slides up the catch exit edge 31, the blocking lever arm 62 becomes constrained behind the pawl recessed portion 52. Beyond that point, the rocker actuator feature 37 of the catch 20 moves beyond engagement with the rocker arm 71 of the rocker lever 70 as depicted in FIG. 2. With the actuating force from the catch 20 relaxed from the rocker lever 70, a spring force in the direction of S2 restores the bias for the blocking lever arm 62 towards the pawl stop 54. As the primary stop 32 of the catch 20 nears the primary position, the blocking arm 48 of the pawl 40 slides smoothly over the transition region 39 from the exit edge 31 to the primary stop 32 of the catch 20. The positive slope between the pawl blocking arm 48 and the primary catch stop 32 are sufficient to allow the pawl 40 to rotate into the catch 20 and to clear the blocking lever arm 62 with only slight over-travel rotation of the catch 20. At this point, the primary catch stop 32 begins to slide smoothly down along the pawl blocking arm 48 and the tip of the blocking lever arm 62 slides smoothly down along the pawl recess wall 52 until it is released to rest below the pawl stop 54 to return the lock unit 10 to the primary latched position of FIG. 1.
[0042] This invention is not to be limited to the specific embodiments disclosed herein and modifications for various applications and other embodiments are intended to be included within the scope of the appended claims. While this invention has been described in connection with particular examples thereof, the true scope of the invention should not be so limited since other modifications will become apparent to the skilled practitioner upon a study of the drawings, specification, and the following claims.
[0043] All publications and patent applications mentioned in this specification are indicative of the level of skill of those skilled in the art to which this invention pertains. All publications and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication or patent application mentioned in this specification was specifically and individually indicated to be incorporated by reference.
REFERENCE CHARACTERS
10 Lock unit
12 Baseplate
13 Leading edge of the baseplate
14 Slot
16 Striker (Catch bolt)
20 Catch
22 First recess of the catch
24 Catch rotation axis
26 Catch mounting hole
30 Second recess of the catch
31 Exit edge of the catch (catch exit edge)
32 Primary stop of the catch (primary catch stop)
33 Contact face of the primary stop of the catch
34 Secondary stop of the catch (secondary catch stop)
36 Sliding surface of the catch
37 Rocker actuator feature
38 Striking edge of the first recess of the catch
39 Transition region between the exit edge of the catch and the primary stop of the catch
40 Pawl
42 Pawl pivot axis Blocking arm of the pawl (pawl blocking arm)
Contact face of the blocking arm of the pawl
Recessed portion of the pawl (pawl recessed portion, pawl recess wall, recessed portion, recessed clearance)
Stop of the pawl (pawl stop)
Blocking lever
Blocking arm of the blocking lever (blocking lever arm)
Release edge of the blocking lever (blocking lever release edge) Blocking lever rotation axis (lever rotation axis)
Blocking lever mounting hole
Rocker lever
Rocker arm of the rocker lever
Blocking lever actuator
Pivot of the rocker lever Contact surface of the rocker lever
Opening direction Blocking lever bias direction
Pawl bias direction Closing direction
Operating direction

Claims

claimed is:
A lock unit for a vehicle, the lock unit having an open position, a primary latched position, and a secondary latched position, and the lock unit comprising:
a catch comprising a first recess and a second recess, and having a catch rotation axis;
a pawl comprising a pawl blocking arm and having a pawl pivot axis; a blocking lever having a blocking lever rotation axis; and
a rocker lever having a pivot;
wherein said catch is rotatable about said catch rotation axis along a first path in an opening direction and in a closing direction, whereby the lock unit assumes the open position, the primary latched position, or the secondary latched position; said catch is biased in the opening direction about said catch rotation axis toward the open position;
said second recess is disposed before said first recess in the opening direction;
said pawl is biased about said pawl pivot axis toward said catch; said first recess is configured to receive a striker of the vehicle in the open position and to securely retain the striker in the primary latched position and the secondary latched position; said blocking lever is rotatable about said blocking lever rotation axis along a second path;
said rocker lever is rotatable about said pivot point and intersects said first path and said second path; when the lock unit is in the primary latched position or in the secondary latched position, said blocking lever abuts said blocking arm against said catch; when the lock unit is in the secondary latched position, said blocking arm extends into said second recess; and
when the lock unit moves from a point after the secondary latched position and before the primary latched position in the closing direction, the catch actuates said rocker lever.
2. The lock unit of claim 1 , wherein said pawl is disposed between said blocking lever and said catch.
3. The lock unit of claim 2, wherein said pawl further comprises a pawl stop; said catch further comprises a primary catch stop; and when the lock unit is in the primary latched position, said blocking lever abuts said pawl stop and said pawl blocking arm abuts said primary catch stop.
4. The lock unit of claim 2, wherein said pawl further comprises a recessed portion, and when the lock unit is in the open position, said blocking lever is at least partially disposed in said recessed portion.
5. The lock unit of claim 3, wherein said blocking lever further comprises a release edge and said blocking lever is rptatable at least from said pawl stop to a position past a recessed clearance.
6. The lock unit of claim 3, wherein said primary catch stop and said blocking arm further comprise contact faces that are complimentarily curved with respect to one another.
7. The lock unit according to claim 1, wherein said catch further comprises a rocker actuator feature projection and said rocker lever further comprises a contact surface, and said actuator feature interacts with said contact surface.
8. The lock unit of claim 8, wherein a displacement of said rocker lever displaces said lever blocking arm from being in contact with said pawl stop.
9. The lock unit of claim 3, wherein said second recess comprises an exit edge and a secondary stop on opposite sides thereof.
10. The lock unit of claim 9, wherein said exit edge is curved toward a transition region between said exit edge and said primary stop; and said secondary stop is curved toward a sliding surface of said catch.
11. The lock unit of claim 10, wherein said exit edge presses against said blocking arm whereby rotating said pawl from the secondary latched position to the primary latched position.
12. The lock unit of claim 3, wherein said blocking lever is biased toward said pawl stop and said blocking lever is connected to an operating link of the vehicle so as to be rotatable away from said pawl stop to release the lock unit from the primary latched position.
13. The lock unit of claim 12, wherein when the lock unit is in the primary latched position, said blocking lever abuts said pawl stop and said blocking arm abuts said primary catch stop.
14. The lock unit of claim 12, wherein said catch further comprises a secondary catch stop, and when the lock unit is in the secondary latched position, said blocking lever abuts said pawl stop and said blocking arm abuts said secondary catch stop.
15. The lock unit of claim 1 1, wherein said primary catch stop and said blocking arm have contact faces that are complimentarily curved with respect to one another.
16. The lock unit of claim 12, wherein said second recess comprises further an exit edge and a secondary stop on opposite sides thereof, and when the lock unit is in the secondary latched position, said second recess is adapted to retain said blocking arm.
17. The lock unit of claim 16, wherein said exit edge is curved toward a transition region between said exit edge and said primary stop; and said secondary stop is curved toward a sliding surface of said catch.
EP12837608.4A 2011-10-21 2012-10-17 Lock device having a multi-part pawl Active EP2776651B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161549901P 2011-10-21 2011-10-21
PCT/IB2012/002827 WO2013057590A2 (en) 2011-10-21 2012-10-17 Lock device having a multi-part pawl

Publications (2)

Publication Number Publication Date
EP2776651A2 true EP2776651A2 (en) 2014-09-17
EP2776651B1 EP2776651B1 (en) 2017-06-28

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EP (1) EP2776651B1 (en)
JP (1) JP6155488B2 (en)
KR (1) KR20140090212A (en)
CN (1) CN103998704B (en)
BR (1) BR112014009482A2 (en)
CA (1) CA2852852A1 (en)
IN (1) IN2014MN00716A (en)
MX (1) MX2014004649A (en)
RU (1) RU2624900C2 (en)
WO (1) WO2013057590A2 (en)

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JP6155488B2 (en) 2017-07-05
JP2015511669A (en) 2015-04-20
WO2013057590A3 (en) 2013-07-11
KR20140090212A (en) 2014-07-16
RU2014118877A (en) 2015-11-27
IN2014MN00716A (en) 2015-07-03
EP2776651B1 (en) 2017-06-28
CA2852852A1 (en) 2013-04-25
CN103998704A (en) 2014-08-20
BR112014009482A2 (en) 2017-06-13
RU2624900C2 (en) 2017-07-07
CN103998704B (en) 2017-02-22
WO2013057590A2 (en) 2013-04-25
MX2014004649A (en) 2014-12-11

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